I'm not a doctor. But Avodart does reduce your PSA by about
half. So stopping it would make it double. I was not aware of this.
I took Avodart for ten years BPH to shrink my prostate. Then I switched to finasteride which is generic proscar. It worked and my BPH became more tolerable.
Then my PSA started to climb from .4 to 2.16 to 5.4 to 6.6 over the last three years so I had a biopsy. Gleason 9 PC was found in two of six cores. I read up on finasteride and found that it reduced PC incidence by about 25%, but increased high risk PC.
That's exactly what happened to me. So if you find your PSA increasing, get a biopsy ASAP!